/Engine/Plugins/Online/OnlineServices/Source/OnlineServicesCommon/Public/Online/ExternalUICommon.h
Event triggered when an external UI's status changes
virtual [TOnlineEvent](API\Plugins\OnlineServicesInterface\Online\TOnlineEvent)< void(const [FExternalUIStatusChanged](API\Plugins\OnlineServicesInterface\Online\FExternalUIStatusChanged) &)> OnExternalUIStatusChanged()